Quiz: Remember the definition of mal de mer?


rare mineral in the zeolite family. Many specimens have been found in Ireland and Iceland in basaltic lavas, along with such other zeolites as chabazite, thomsonite, and phillipsite. Gismondine forms colourless, bipyramidal crystals of orthorhombic symmetry; it is a hydrated calcium aluminosilicate with the formula Ca2Al4Si4O169H2O.

Learn more about gismondine with a free trial on
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Word Value for gismondine

Scrabble Words With Friends

Nearby words for gismondine